I have trouble with my DH55HC Motherboard and a I3 prossessor, after starting up my monitor goes black ,the pc runs but no picture. It seems that I have some display problems.No matter if I use a Pci Graphic card or the onboard vga it always goes black. I just sent this board to the vendor for claim but after they sent it back to me the problem is still there. I tried everything possible changing the power unit, Monitor, Vga cables, memory, name it I did it all. I reinstalled the OS Windows 7 Ultimate I even tried XP but my screen went black. Can Anyone help me?